arch/arm/mach-omap2/board-h4.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-h4.c
   3  *
   4  * Copyright (C) 2005 Nokia Corporation
   5  * Author: Paul Mundt <paul.mundt@nokia.com>
   6  *
   7  * Modified from mach-omap/omap1/board-generic.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/mtd/physmap.h>
  20 #include <linux/delay.h>
  21 #include <linux/workqueue.h>
  22 #include <linux/i2c.h>
  23 #include <linux/i2c/at24.h>
  24 #include <linux/input.h>
  25 #include <linux/err.h>
  26 #include <linux/clk.h>
  27 #include <linux/io.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/gpio.h>
  35 #include <plat/usb.h>
  36 #include <plat/board.h>
  37 #include <plat/common.h>
  38 #include <plat/keypad.h>
  39 #include <plat/menelaus.h>
  40 #include <plat/dma.h>
  41 #include <plat/gpmc.h>
  42
  43 #include <video/omapdss.h>
  44 #include <video/omap-panel-generic-dpi.h>
  45
  46 #include "mux.h"
  47 #include "control.h"
  48
  49 #define H4_FLASH_CS     0
  50 #define H4_SMC91X_CS    1
  51
  52 #define H4_ETHR_GPIO_IRQ                92
  53
  54 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
  55 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
  56
  57 static const unsigned int h4_keymap[] = {
  58         KEY(0, 0, KEY_LEFT),
  59         KEY(1, 0, KEY_RIGHT),
  60         KEY(2, 0, KEY_A),
  61         KEY(3, 0, KEY_B),
  62         KEY(4, 0, KEY_C),
  63         KEY(0, 1, KEY_DOWN),
  64         KEY(1, 1, KEY_UP),
  65         KEY(2, 1, KEY_E),
  66         KEY(3, 1, KEY_F),
  67         KEY(4, 1, KEY_G),
  68         KEY(0, 2, KEY_ENTER),
  69         KEY(1, 2, KEY_I),
  70         KEY(2, 2, KEY_J),
  71         KEY(3, 2, KEY_K),
  72         KEY(4, 2, KEY_3),
  73         KEY(0, 3, KEY_M),
  74         KEY(1, 3, KEY_N),
  75         KEY(2, 3, KEY_O),
  76         KEY(3, 3, KEY_P),
  77         KEY(4, 3, KEY_Q),
  78         KEY(0, 4, KEY_R),
  79         KEY(1, 4, KEY_4),
  80         KEY(2, 4, KEY_T),
  81         KEY(3, 4, KEY_U),
  82         KEY(4, 4, KEY_ENTER),
  83         KEY(0, 5, KEY_V),
  84         KEY(1, 5, KEY_W),
  85         KEY(2, 5, KEY_L),
  86         KEY(3, 5, KEY_S),
  87         KEY(4, 5, KEY_ENTER),
  88 };
  89
  90 static struct mtd_partition h4_partitions[] = {
  91         /* bootloader (U-Boot, etc) in first sector */
  92         {
  93               .name             = "bootloader",
  94               .offset           = 0,
  95               .size             = SZ_128K,
  96               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  97         },
  98         /* bootloader params in the next sector */
  99         {
 100               .name             = "params",
 101               .offset           = MTDPART_OFS_APPEND,
 102               .size             = SZ_128K,
 103               .mask_flags       = 0,
 104         },
 105         /* kernel */
 106         {
 107               .name             = "kernel",
 108               .offset           = MTDPART_OFS_APPEND,
 109               .size             = SZ_2M,
 110               .mask_flags       = 0
 111         },
 112         /* file system */
 113         {
 114               .name             = "filesystem",
 115               .offset           = MTDPART_OFS_APPEND,
 116               .size             = MTDPART_SIZ_FULL,
 117               .mask_flags       = 0
 118         }
 119 };
 120
 121 static struct physmap_flash_data h4_flash_data = {
 122         .width          = 2,
 123         .parts          = h4_partitions,
 124         .nr_parts       = ARRAY_SIZE(h4_partitions),
 125 };
 126
 127 static struct resource h4_flash_resource = {
 128         .flags          = IORESOURCE_MEM,
 129 };
 130
 131 static struct platform_device h4_flash_device = {
 132         .name           = "physmap-flash",
 133         .id             = 0,
 134         .dev            = {
 135                 .platform_data  = &h4_flash_data,
 136         },
 137         .num_resources  = 1,
 138         .resource       = &h4_flash_resource,
 139 };
 140
 141 static const struct matrix_keymap_data h4_keymap_data = {
 142         .keymap         = h4_keymap,
 143         .keymap_size    = ARRAY_SIZE(h4_keymap),
 144 };
 145
 146 static struct omap_kp_platform_data h4_kp_data = {
 147         .rows           = 6,
 148         .cols           = 7,
 149         .keymap_data    = &h4_keymap_data,
 150         .rep            = true,
 151         .row_gpios      = row_gpios,
 152         .col_gpios      = col_gpios,
 153 };
 154
 155 static struct platform_device h4_kp_device = {
 156         .name           = "omap-keypad",
 157         .id             = -1,
 158         .dev            = {
 159                 .platform_data = &h4_kp_data,
 160         },
 161 };
 162
 163 static struct platform_device *h4_devices[] __initdata = {
 164         &h4_flash_device,
 165         &h4_kp_device,
 166 };
 167
 168 static struct panel_generic_dpi_data h4_panel_data = {
 169         .name                   = "h4",
 170 };
 171
 172 static struct omap_dss_device h4_lcd_device = {
 173         .name                   = "lcd",
 174         .driver_name            = "generic_dpi_panel",
 175         .type                   = OMAP_DISPLAY_TYPE_DPI,
 176         .phy.dpi.data_lines     = 16,
 177         .data                   = &h4_panel_data,
 178 };
 179
 180 static struct omap_dss_device *h4_dss_devices[] = {
 181         &h4_lcd_device,
 182 };
 183
 184 static struct omap_dss_board_info h4_dss_data = {
 185         .num_devices    = ARRAY_SIZE(h4_dss_devices),
 186         .devices        = h4_dss_devices,
 187         .default_device = &h4_lcd_device,
 188 };
 189
 190 /* 2420 Sysboot setup (2430 is different) */
 191 static u32 get_sysboot_value(void)
 192 {
 193         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 194                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 195                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 196                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 197 }
 198
 199 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 200  *
 201  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 202  *  correctly.  The macro needs to look at production_id not just hawkeye.
 203  */
 204 static u32 is_gpmc_muxed(void)
 205 {
 206         u32 mux;
 207         mux = get_sysboot_value();
 208         if ((mux & 0xF) == 0xd)
 209                 return 1;       /* NAND config (could be either) */
 210         if (mux & 0x2)          /* if mux'ed */
 211                 return 1;
 212         else
 213                 return 0;
 214 }
 215
 216 static inline void __init h4_init_debug(void)
 217 {
 218         int eth_cs;
 219         unsigned long cs_mem_base;
 220         unsigned int muxed, rate;
 221         struct clk *gpmc_fck;
 222
 223         eth_cs  = H4_SMC91X_CS;
 224
 225         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 226         if (IS_ERR(gpmc_fck)) {
 227                 WARN_ON(1);
 228                 return;
 229         }
 230
 231         clk_enable(gpmc_fck);
 232         rate = clk_get_rate(gpmc_fck);
 233         clk_disable(gpmc_fck);
 234         clk_put(gpmc_fck);
 235
 236         if (is_gpmc_muxed())
 237                 muxed = 0x200;
 238         else
 239                 muxed = 0;
 240
 241         /* Make sure CS1 timings are correct */
 242         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 243                           0x00011000 | muxed);
 244
 245         if (rate >= 160000000) {
 246                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 247                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 248                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 249                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 250                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 251         } else if (rate >= 130000000) {
 252                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 253                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 254                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 255                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 256                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 257         } else {/* rate = 100000000 */
 258                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 259                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 260                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 261                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 262                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 263         }
 264
 265         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 266                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 267                 goto out;
 268         }
 269
 270         udelay(100);
 271
 272         omap_mux_init_gpio(92, 0);
 273         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 274                 gpmc_cs_free(eth_cs);
 275
 276 out:
 277         clk_disable(gpmc_fck);
 278         clk_put(gpmc_fck);
 279 }
 280
 281 static void __init h4_init_flash(void)
 282 {
 283         unsigned long base;
 284
 285         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 286                 printk("Can't request GPMC CS for flash\n");
 287                 return;
 288         }
 289         h4_flash_resource.start = base;
 290         h4_flash_resource.end   = base + SZ_64M - 1;
 291 }
 292
 293 static struct omap_usb_config h4_usb_config __initdata = {
 294         /* S1.10 OFF -- usb "download port"
 295          * usb0 switched to Mini-B port and isp1105 transceiver;
 296          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
 297          */
 298         .register_dev   = 1,
 299         .pins[0]        = 3,
 300 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
 301         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
 302 };
 303
 304 static struct at24_platform_data m24c01 = {
 305         .byte_len       = SZ_1K / 8,
 306         .page_size      = 16,
 307 };
 308
 309 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 310         {
 311                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 312                 .irq            = OMAP_GPIO_IRQ(125),
 313         },
 314         {       /* EEPROM on mainboard */
 315                 I2C_BOARD_INFO("24c01", 0x52),
 316                 .platform_data  = &m24c01,
 317         },
 318         {       /* EEPROM on cpu card */
 319                 I2C_BOARD_INFO("24c01", 0x57),
 320                 .platform_data  = &m24c01,
 321         },
 322 };
 323
 324 #ifdef CONFIG_OMAP_MUX
 325 static struct omap_board_mux board_mux[] __initdata = {
 326         { .reg_offset = OMAP_MUX_TERMINATOR },
 327 };
 328 #endif
 329
 330 static void __init omap_h4_init(void)
 331 {
 332         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 333
 334         /*
 335          * Make sure the serial ports are muxed on at this point.
 336          * You have to mux them off in device drivers later on
 337          * if not needed.
 338          */
 339
 340 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 341         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 342         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 343         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 344         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 345         if (omap_has_menelaus()) {
 346                 omap_mux_init_signal("sdrc_a14.gpio0",
 347                         OMAP_PULL_ENA | OMAP_PULL_UP);
 348                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 349                 omap_mux_init_signal("gpio_98", 0);
 350                 row_gpios[5] = 0;
 351                 col_gpios[2] = 15;
 352                 col_gpios[6] = 18;
 353         } else {
 354                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 355                 omap_mux_init_signal("gpio_100", 0);
 356                 omap_mux_init_signal("gpio_98", 0);
 357         }
 358         omap_mux_init_signal("gpio_90", 0);
 359         omap_mux_init_signal("gpio_91", 0);
 360         omap_mux_init_signal("gpio_36", 0);
 361         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 362         omap_mux_init_signal("gpio_97", 0);
 363 #endif
 364
 365         i2c_register_board_info(1, h4_i2c_board_info,
 366                         ARRAY_SIZE(h4_i2c_board_info));
 367
 368         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 369         omap2_usbfs_init(&h4_usb_config);
 370         omap_serial_init();
 371         omap_sdrc_init(NULL, NULL);
 372         h4_init_flash();
 373
 374         omap_display_init(&h4_dss_data);
 375 }
 376
 377 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 378         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 379         .atag_offset    = 0x100,
 380         .reserve        = omap_reserve,
 381         .map_io         = omap242x_map_io,
 382         .init_early     = omap2420_init_early,
 383         .init_irq       = omap2_init_irq,
 384         .init_machine   = omap_h4_init,
 385         .timer          = &omap2_timer,
 386 MACHINE_END